Jack Osbourne’s Tiny Trick-Or-Treater

Proud papa Jack Osbourne Tweeted this adorable picture of his sweet lil’ strawberry Pearl all dressed up in her Halloween best.

Jack says that people have been quick to spoil his 5-month-old daughter – in fact, they’ve received so many gifts that he says “We’ve had to respectfully decline any more.”

“We haven’t gotten anything too crazy,” he tells PEOPLE. “There have just been lots of clothes and toys. Not really too outrageous for a baby.”

Jack, who wed Pearl’s mom Lisa Stelly earlier this month, is understandably crazy about the family’s new addition.

“It’s a lot of fun,” he says of fatherhood. “The best part is there’s something new every day. Babies grow so much when they’re this age. They’re constantly changing. You’ll go to bed one night and wake up the next morning and you’ll learn something new. That’s the exciting part.”